An Experimental Proof of Concept for Integrated Sensing and Communications Waveform Design

Xu, Tongyang; Liu, Fan; Masouros, Christos; Darwazeh, Izzat

doi:10.1109/ojcoms.2022.3209641

Cited by 21 publications

(6 citation statements)

References 44 publications

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“…In consequence, we are working on the extension of our PMCW-CDMA-based model to also provide other JCRS models based on additional waveforms. Examples of such JCRS systems can be found for OFDM in [84], [85], linear frequency modulation in [86], and combined waveforms like flexible sensing implanted-OFDM or orthogonal time frequency space in [87] and [13], respectively. And they are extended by space-frequency modulated co-designs, as proposed by Wang et al in [88].…”

Section: Discussionmentioning

confidence: 99%

Evaluating RF Hardware Characteristics for Automotive JCRS Systems Based on PMCW-CDMA at 77GHz

Lübke¹,

Su²,

Franchi³

2023

IEEE Access

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Joint communications and radar sensing (JCRS) applications are currently being hailed as the innovation of the next generation of mobile communications. The combination of communications and sensor technology on one hardware platform offers various advantages, such as significant savings in space and costs. The two technologies are no longer being optimized and developed side by side, as has been the case in the past, but jointly. The physical channel is used by both simultaneously, including the transmitter and receiver structures, which must be optimized for the combined application. This inevitably leads to an influence on the performance of both systems. In this work, this influence is considered and analyzed with respect to the effects of the radio frequency components. For this purpose, our previously published code-division multiple access (CDMA)-based and vehicle-to-vehicle-focused model is extended to a JCRS model and evaluated according to the achieved bit error rate as well as the mean deviation of the detected distance and velocity in Simulink. The influence of the non-ideal hardware components (mixers, power amplifier, low noise amplifier, filter, antenna) and characteristics (S-parameters, non-linearity of the amplifiers and the noise) on the sensing and communications are analyzed and compared in this automotive context. The results reveal that the noise of the low noise amplifier at the receiver side has the most decisive influence. In contrast, the noise generated by the power amplifier at the transmitter has no effect due to the relatively high signal power. The non-linearity of amplifiers at the transmitter also significantly impacts the available sensing range by limiting and compressing signal power. Besides, the phase noise with a frequency offset higher than 10 MHz can increase the communications and sensing error rate. In contrast, the influence of S-parameters is negligible, as the performance of communications and sensing is almost unchanged with different S-parameters. In the future, the proposed single-target scene will be further extended to a multi-target one.INDEX TERMS CDMA, connected vehicles, joint communications and radar sensing, RF hardware characteristics, modeling, physical layer, PMCW, 77 GHz.

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Section: Discussionmentioning

confidence: 99%

Evaluating RF Hardware Characteristics for Automotive JCRS Systems Based on PMCW-CDMA at 77GHz

Lübke¹,

Su²,

Franchi³

2023

IEEE Access

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“…This prototype demonstrated millimeter-level resolution imaging of occluded objects and achieved high-speed over-the-air transmission. University College London developed an OFDM-based MIMO software-defined radio (SDR) testbed to show that dual-function radiation waveform can simultaneously perform radar sensing and communication functions [239].…”

Section: Integrated Sensing and Communication (Isac) Testbedsmentioning

confidence: 99%

Beyond 5G: A Comprehensive Exploration of 6G Wireless Communication Technologies

Siddiky,

Rahman,

Uzzal

2024

Preprint

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As the telecommunications landscape braces for the post-5G era, this paper embarks on delineating the foundational pillars and pioneering visions that define the trajectory towards 6G wireless communication systems. Recognizing the insatiable demand for higher data rates, enhanced connectivity, and broader network coverage, we unravel the evolution from the existing 5G infrastructure to the nascent 6G framework, setting the stage for transformative advancements anticipated in the 2030s. Our discourse navigates through the intricate architecture of 6G, highlighting the paradigm shifts towards super convergence, non-IP-based networking protocols, and information-centric net-works, all underpinned by a robust 360-degree cybersecurity and privacy-by-engineering design. Delving into the core of 6G, we articulate a systematic exploration of the key technologies earmarked to revolutionize wireless communication including terahertz (THz) waves, optical wireless technology, and dynamic spectrum management,while elucidating the intricate tradeoffs necessitated by the integration of such innovations. This paper not only lays out a comprehensive 6G vision accentuated by high security, affordability, and intelligence but also charts the course for addressing the pivotal challenges of spectrum efficiency, energy consumption, and the seamless integration of emerging technologies. In this study, our goal is to enrich the existing discussions and research efforts by providing comprehen-sive insights into the development of 6G technology, ultimately supporting the creation of a thoroughly connected future world that meets evolving demands.

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“…Coming to the practical side of the research, there are some literature on tests and trials of ISAC in different scenarios. Reference [14] introduces a gesture recognition system that leverages changes in Wi-Fi signal strengths to sense in-air hand gestures around mobile devices. Communication links can be established simultaneously when conducting such trials.…”

Section: Introductionmentioning

confidence: 99%

Integrated sensing and communication based outdoor multi-target detection, tracking, and localization in practical 5G Networks

Liu,

Jian,

Chen

et al. 2023

Intell. and Converged Netw.

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The 6th generation (6G) wireless networks will likely to support a variety of capabilities beyond communication, such as sensing and localization, through the use of communication networks empowered by advanced technologies. Integrated sensing and communication (ISAC) has been recognized as a critical technology as well as a usage scenario for 6G, as widely agreed by leading global standardization bodies. ISAC utilizes communication infrastructure and devices to provide the capability of sensing the environment with high resolution, as well as tracking and localizing moving objects nearby. Meeting both the requirements for communication and sensing simultaneously, ISAC-based approaches celebrate the advantages of higher spectral and energy efficiency compared to two separate systems to serve two purposes, and potentially lower costs and easy deployment. A key step towards the standardization and commercialization of ISAC is to carry out comprehensive field trials in practical networks, such as the 5th generation (5G) networks, to demonstrate its true capacities in practical scenarios. In this paper, an ISAC-based outdoor multi-target detection, tracking and localization approach is proposed and validated in 5G networks. The proposed system comprises of 5G base stations (BSs) which serve nearby mobile users normally, while accomplishing the task of detecting, tracking, and localizing drones, vehicles, and pedestrians simultaneously.Comprehensive trial results demonstrate the relatively high accuracy of the proposed method in practical outdoor environment when tracking and localizing single targets and multiple targets.

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An Experimental Proof of Concept for Integrated Sensing and Communications Waveform Design

Cited by 21 publications

References 44 publications

Evaluating RF Hardware Characteristics for Automotive JCRS Systems Based on PMCW-CDMA at 77GHz

Evaluating RF Hardware Characteristics for Automotive JCRS Systems Based on PMCW-CDMA at 77GHz

Beyond 5G: A Comprehensive Exploration of 6G Wireless Communication Technologies

Integrated sensing and communication based outdoor multi-target detection, tracking, and localization in practical 5G Networks

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